kõrge sulamistemperatuuriga (üle raua sulamistemperatuuri, s.o 1539 °C) metall (nt Ti, Cr, Mo, W, V jt) (vrd kergsulav metall), term applied to transition group elements in periodic table which have high melting point (e.g Cr, Ti, Pt, Ta, W, Zr) (compare: low-melting metal)